code: def s_vars(n):
      """Form the symbols s1, s2, ..., sn to stand for elem. symm. polys."""
      return symbols([f"s{i + 1}" for i in range(n)])
  
imports: from sympy.core.evalf import evalf, fastlog, _evalf_with_bounded_error, quad_to_mpmath
  from sympy.core.symbol import symbols, Dummy
  from sympy.polys.densetools import dup_eval
  from sympy.polys.domains import ZZ
  from sympy.polys.numberfields.resolvent_lookup import resolvent_coeff_lambdas
  from sympy.polys.orderings import lex
  from sympy.polys.polyroots import preprocess_roots
  from sympy.polys.polytools import Poly
  from sympy.polys.rings import xring
  from sympy.polys.specialpolys import symmetric_poly
  from sympy.utilities.lambdify import lambdify
  from mpmath import MPContext
  from mpmath.libmp.libmpf import prec_to_dps
label_desc: Use image node_id 2 for calling a global function with example usage: s_vars(n) and returns: symbols